# A charge +Q and -2Q were placed on first and third of three very large parallel plates. The middle plate is earthed. Find the chargeon right extreem plate

17,079 questions, page 76
1. ## Physics

A certain substance has a dielectric constant of 2.8 and a dielectric strength of 18.0 MV/m. If it is used as the dielectric material in a parallel-plate capacitor, what minimum area should the plates of the capacitor have to obtain a capacitance of

asked by Nicole on February 14, 2013
2. ## Physics

The figure shows an electron entering a parallel-plate capacitor with a speed of 5.65×106 . The electric field of the capacitor has deflected the electron downward by a distance of 0.618 at the point where the electron exits the capacitor.

asked by Nas on February 2, 2012
3. ## Physics

A total 3.09e6 electrons are placed on an initially uncharged wire of length 1.36 m What is the magnitude of the electric filed a perpendicular distance of 0.417m away from the midpoint wire? I used E=k|Q|/(x(x^2+L^2/4)^1/2) and I got 9.37e16 N/C which is

asked by Cesar on September 12, 2011
4. ## history of the arts

The Grand Tour was considered a feature of affluent men and women. true or false I am not sure, but reading through the text it says it was the large cultural visit to sites in southern europe. given that i believe it is true!

asked by Daniel on February 5, 2009
5. ## Chemistry

An apple pie needs 10 large apples, 2 crusts (top and bottom), and 1 tablespoon of cinnamon. write a balanced equation that fits this situation. How many apples are needed to make 25 pies?

asked by Lexi on March 6, 2018
6. ## physics

A large aquarium has viewing ports so people can watch dolphins swim by. What is the net force on a rectangular window, 2.30 m wide and 1.20 m high, if the top of the window is 4.50 m below the surface of the water?

asked by John on June 9, 2016
7. ## Physics

A 1500kg car is travelling around a large roundabout of radius 40m at a constant speed of 50kmh-1. Calculate the time it takes to go halfway aound the roundabout. Just wondering which equation I should use. Thanks

asked by Mandy on March 26, 2015
8. ## MATH

A collar of Styrofoam is made to insulate a pipe. Find its volume The large radius is to the outer rim. The small radius r is to the edge of the insulation. Use π for 3.14. r = 3 in R = 5 in h = 18 in. Round 2 decimal places

9. ## inorganic chermistry

a large number of hydrogen atoms have electrons excited to the n_h=4 state.How many possible spectral lines can appear in the emission spectrum as a results of the electron reaching the ground state(n_1=1)?

asked by kabelo on August 30, 2010
10. ## Are there even any physics tutors here???

Sorry if I'm sounding as if I'm whining but I'm getting pretty annoyed at how there are many unanswered physics questions. Literally posted a question two months ago and never got any help... This is kinda annoying because the questions get lost in the

asked by Sandara on February 2, 2015
11. ## physics

A car traveling at 22.1 m/s honks its horn as it directly approaches the side of a large building. The horn produces a long sustained note of frequency f0 = 235 Hz. The sound is reflected

asked by help me on April 2, 2011
12. ## inorganic chemistry

A large number of hydrogen atoms have electrons to the n=4 state.How many possible spectral lines can appear in the emission spectrum as a result of the electron reaching the ground state(n1=1).Diagram all possible pathways for de excitation from nh=4 to

asked by dimpho on July 30, 2014
13. ## biology

which of the following pair of organisms represents a predator-prey relationship? a- flea and dog b- robin and tree c- polar bear and seal d- bacteria in human large intestine and human

asked by pkd on December 21, 2010
14. ## Ms. sue

It has been a long time. need help on this: You have an assignment to write a research paper about the hiring practices at XYZ Mart, a large retail chain. Use the Internet to find five Web sites that you think will be appropriate to use for this

asked by Rose on September 28, 2009
15. ## Statistics

Is there a rule to figure out if this is a true or false statement? A sample size of 900 is not large enough to conclude that the sampling distribution of p is a normal distribution, when the estimate of the population proportion is .995.

asked by none on October 24, 2010
16. ## Math

Find a 95% confidence interval for the true population portion. In a survey of 319 female employees of a large company, 29% said that they had experienced some form of sexual harassment while working for the company.

asked by Deb on December 11, 2010
17. ## politics

1.The elites in a society: a.are those with college degrees. b.must be locally elected officials. c.are software designers and computer engineers. d.are the people who get a disproportionately large part of the society's valued resources. D ?

asked by bev on April 8, 2018
18. ## statistics

A large group of students has taken a college entrance exam. The scores on the exam are such that the mean = 52 and the standard deviation = 11 Find the probability that a student, selected at random, earned a score lower than 63.

asked by MM on June 24, 2011
19. ## math

In a large population of adults, the mean IQ is 112 with a standard deviation of 20. Suppose 200 adults are randomly selected for a market research campaign. The probability that the sample mean IQ is greater than 110 is...?

asked by Belinda on February 5, 2008
20. ## Stats-BOB PURSLEY Help, do you know this?

Is there a rule to figure out if this is a true or false statement? A sample size of 900 is not large enough to conclude that the sampling distribution of p is a normal distribution, when the estimate of the population proportion is .995.

asked by help on October 24, 2010
21. ## fluid mechanics

A dam has been constructed of a large cylindrical pipe 10ft in diameter and 3ft long. Calculate the net vertical and horizontal components of the fluid(water) force on this dam.

asked by Kim on March 22, 2015
22. ## statistics

A pilot study has revealed a sample standard deviation of 16 for age of people in the work force. How large a sample must be chose to obtain an estimator of the mean that, with 95% confidence, will be correct to within 2 years?

asked by Sally on March 20, 2009
23. ## fluid mechanics

A dam has been constructed of a large cylindrical pipe 10ft in diameter an 3ft long. Calcualte the net vertical and horizontal components of the fluid(water) force on this dam.

asked by Kim on March 22, 2015

It is a biological fact that a human being can live without food for a number of weeks. However, if deprived of water, a human being will die in approximately three days. Explain the large difference in time between these two facts.

asked by icha on August 27, 2010
25. ## Science

Which of the following pairs of structures share the function of reabsorbing water into the body? a- Lungs, Stomach b- bone marrow, small intestine c- hypothalamus, pancreas d- large intestine, kidney D?

asked by Anonymous on February 20, 2014
26. ## Math (Planes)

Given the equation x + z = 2. Is P parallel to any of the coordinate planes? Is P perpendicular to any of the coordinate planes?

asked by Ray on October 10, 2017
27. ## College

If the line passing through point (a,1) and (8,7) is parallel to the line passing through the points (4,9) and (a+2,1) what is the value of a?

asked by Justin on June 12, 2012
28. ## College Algebra

write an equation for the line that passes though (3,3) and is parallel to the line with equation 4x+y-5=0

asked by meri on March 6, 2015
29. ## geometry

if lines M and N are parallel, and the measure of angle 8 is 20degress, what is the measure of angle 3?

asked by Britany on March 14, 2011
30. ## Math

What is the equation of the line segment joining P(x, y) to (2, 4) and is parallel to the segment joining (-2, -1) and (6, 8).

asked by alexis on July 7, 2016
31. ## Algebra

The question is: What is the slope of a line that is parallel to a vertical line? Would it be a slope of 0? Thanks!

asked by Aurelia on January 13, 2009
32. ## Algebra

Find the equation of the line passing through (-5, -4) and parallel to the line passing through (-3,2) and (6,8)

asked by Pat on November 9, 2009
33. ## Math

Which equation represents a line that is parallel to the line whose equation is 3x - 2y = 7 A) Y= -3/2x + 5 B)Y= -2/3x + 4 C)Y= 3/2x - 5 D)Y= 2/3x - 4 I chose c

asked by Joseph on October 10, 2018
34. ## trig

two poles of height 25 cm & 20 cm are are parallel to each other with a distance of 12 cm between them. what is the distance between the top of the two poles?

asked by shrenik on July 26, 2014
35. ## Math

Write an equation of the line with y-intercept 4 that is parallel to the line whose equation is y=3x+2

asked by amy on February 29, 2012
36. ## math

y=mx t b ax t by=c ax t by t c= 0 Need every question for all 3 above how do u do these im so confused i need help! thanks 8) Through (4,0) and slope of -1 0) through (4,5) with slope -8 10) through (-2,4) with slope 7 over 3 11)through (-2,-1) with slope

asked by zack on December 3, 2012
37. ## Algebra

what is the equation of the line given the following conditions. 6. Passing through (-8, -10) and parallel to the line whose equation is y = -4x + 3

asked by anonymous on March 20, 2019
38. ## Geometry

This is Parallel lines and angles. The measure of angle (3x+17)? the measure of angle (4x+12)?

asked by Holly on October 14, 2007
39. ## Math

if line m is parallel to line n and is cut by a transversal and angle 4 =3x - 20 and angle 5 = x + 40, what is the value of x?

asked by Oscar on March 9, 2010
40. ## Chemistry Plz hurrry

What are charateristic of a ionic bond and a chemical bond? An ionic bond is a type of chemical bond that involves gain or loss of valence (outer shell) electrons in order to attain stability. That is not what I am looking for but thanks anyway An ionic

asked by Smooches on November 30, 2006
41. ## Physics

Electrons are ejected from a surface with speeds ranging up to 6.0 x 10^5 m/s when light with a wavelength of 400 nm shines on it. a.) What is the work function of this surface? b.) What is the threshold frequency for this surface? c.) What is the

asked by Nathaniel on June 12, 2006
42. ## Geometry

ABCD is a trapezoid with AB < CD and AB parallel to CD. \Gamma is a circle inscribed in ABCD, such that \Gamma is tangent to all four sides. If AD = BC = 25 and the area of ABCD is 600, what is the radius of \Gamma?

asked by Jason on March 27, 2013
43. ## physics

Roger pushes a box on a 30° incline. If he applies a force of 60 newtons parallel to the incline and displaces the box 10 meters along the incline, how much work will he do on the box?

asked by Anonymous on March 2, 2018
44. ## calculus

A curve passes through the point (1,-11) and it's gradient at any point is ax^2 + b, where a and b are constants. The tangent to the curve at the point (2,-16) is parallel to the x-axis. Find i) the values of a and b ii) the equation of the curve

asked by Amponsah on April 9, 2012
45. ## math

Suppose you have a \$1,000 charge on a credit card charging 1.5% monthly interest using the adjusted balance method. The minimum payment due in May is \$30. How much will you save in interest charges in June by paying \$60 instead? \$ 1 .Viewing Saved Work

asked by Anonymous on August 20, 2012
46. ## physics

a particle that has a charge of +12.8E-19 C and a mass of 8.0E-27kg is moving along the +x axis at a constant speed of 2.0E10 m/s. it then enter a region where the eletric field of 300 N/C is directed along thr +x axis. calculate the particles displacement

asked by Najia on February 22, 2010
47. ## PHYSICS

Two identical teflon rods are 10 centimeters long and rubbed with fur so that they each have a total negative charge of 20 microCoulombs that is uniformly distributed along their length. They are arranged along the same axis, with their ends 5 centimeters

asked by Ramana on January 27, 2014
48. ## tec401

Prepare a 1,400 to 1,750-word paper detailing how a new technology system should be implemented or introduced to a company. Include your recommendations as if you were the manager in charge of implementing the new technology. Give your ideas on how the

asked by Anonymous on January 18, 2011
49. ## math exam tommrow review

the ABC cell phone company offers a plan that includes a flat rate fee of \$29 per month plus a \$0.12 charge per minute.write an equation to find C, the total monthly cost for m mintues. then solve the equation for m=50. please show work.

asked by ellis on December 18, 2012
50. ## Physics

Two identical teflon rods are 10 centimeters long and rubbed with fur so that they each have a total negative charge of 20 microCoulombs that is uniformly distributed along their length. They are arranged along the same axis, with their ends 5 centimeters

asked by Leroy on January 23, 2014
51. ## Algebra

Hi sorry i don't know if there's a reply function in this website (there should be). So for the info, it's: -Item: \$5800 -Down payment: \$600 -Finance charge: 7% -12 months to pay -Not sure if compound interest but I'd assume if that's how installments

asked by Pat on April 11, 2019
52. ## PHYSICS

Two identical teflon rods are 10 centimeters long and rubbed with fur so that they each have a total negative charge of 20 microCoulombs that is uniformly distributed along their length. They are arranged along the same axis, with their ends 5 centimeters

asked by Ramana on January 27, 2014
53. ## physics

A satellite is in a circular earth orbit that has a radius of 6.63E+6 m. A model airplane is flying on a 16.4 m guideline in a horizontal circle. The guideline is nearly parallel to the ground. Find the speed of the plane such that the plane and the

asked by Anonymous on February 12, 2012
54. ## Physics

Draw an open circuit that consists of 2 sets of 2 cells connected in series, connected in [arallel with each other. Add a variable resitance R1 in series with a set of 3 light bulbs r2, r3, r4 in parallel with each other. Insert an ammeter and a voltmeter

asked by Summer on January 27, 2013
55. ## math

The parallel edges of a trapezium shaped field are 77m and 60m.If the remaining edges are 25M and 26m,what is the total cost of digging twice the land at the rate of Rs.10 persq m and fencing thr land three times at the rate of Rs.20 per m

asked by sonika on August 22, 2018
56. ## physics

A uniform rod 8m long weighing 5kg is supported horizontally by 2 vertical parallel strings at P and Q and at distances of 2m and 6m from one end. Weights of 1kg, 1.5 kg, and 2kg are attatched at distances of 1m, 5m, and 7m respectively from the same end.

asked by tj on October 16, 2012
57. ## Math

ilorin is at 8.5 degree to the north,4.6 degree to the east and free town at 8.5degree to the north,13.3degree to the west calculate(a)their distance apart,measured along the parallel of latitude(b)their distance from the equqtor(c)their speed in km/h due

asked by flexy on October 24, 2012
58. ## Math - Intersection of planes

Find the vector equation of the line of intersection for the pair of planes. Plane one: x+5y-3z-8=0 Plane two: y+2z-4=0 I did half of the work but now i am stuck. the normal of the planes are not parallel and therefore a solution exists, you simultaneously

asked by Shaila on September 1, 2010
59. ## science

Why does a light go out when you turn off the wall switch? A. The switch changes the direction of the flow of electrons. B. The switch causes a break in the circuit. C. The switch changes the circuit from series to parallel. D. The switch absorbs the

asked by Anonymous on May 26, 2015
60. ## chemistry

A chemist in a galaxy far, far away performed the Millikan oil drop experiment and got the following results for the charges on various drops. 2.52 ✕ 10-12 zirkombs 9.45 ✕ 10-12 zirkombs 3.78 ✕ 10-12 zirkombs 6.30 ✕ 10-13 zirkombs Use these data to

asked by maath on September 13, 2018
61. ## math

Diana designs stained-glass windows. She has a large supply of square galss windw panes. Some panes are yellow, and some panes are red. She wants

asked by Us on September 5, 2013
62. ## math

Mohammed has a garden in the shape of a semi-circle. If the width of the garden, at it’s widest point, is 14 feet, how large is the garden in square yards. Thank you in advance.

asked by norma on July 4, 2010
63. ## physics

A skateboarder shoots off a ramp with a velocity of 6.8 m/s, directed at an angle of 56° above the horizontal. The end of the ramp is 1.5 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the

asked by bob on September 8, 2011
64. ## physics

A skateboarder shoots off a ramp with a velocity of 6.4 m/s, directed at an angle of 54° above the horizontal. The end of the ramp is 1.4 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the

asked by Anonymous on September 6, 2014
65. ## physics

A skateboarder shoots off a ramp with a velocity of 6.4 m/s, directed at an angle of 61° above the horizontal. The end of the ramp is 1.4 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the

asked by Anonymous on January 20, 2012
66. ## physics- still confused.

A positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread as shown below. After being charged once, the plates are disconnected from the battery. Describe the behavior of the ball. Thank you so

asked by Angela here again on February 27, 2011
67. ## Physics pls help

An electron is accelerated by a 6.4 kV potential difference. The charge on an electron is 1.60218 × 10^−19 C and its mass is 9.10939 × 10^−31 kg. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.1

asked by cr on April 14, 2011
68. ## physics

please,i need help on this question:a thin circular ring of radius 20cm is charged with a uniform charge density(rho),if a small section of 1cm length is removed from the ring.calculate the electric field intensity at the center of the ring

asked by culata on May 16, 2010
69. ## Math

1. Michael Koepler received his bank statement and canceled checks for October. His previous balance was \$998.41. In October, he deposited \$177.00 and wrote checks totaling \$378.00. What was the ending balance for that month? MY ANSWER- I am unsure if the

asked by N. on March 21, 2015
70. ## [+] (+) [-] PHYSICS PRE-AP 11th GRADE

A positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread as shown below. After being charged once, the plates are disconnected from the battery. Describe the behavior of the ball. Could you

asked by Angela on February 25, 2011
71. ## Phy

A non conducting sphere of radius r charged uniformly with surface charge density sigma rotates with angular velocity omega about the axis passing through its centre. Find the magnetic induction at the centre of sphere.

asked by Atharva Mandlik on June 22, 2017
72. ## What is math

a credit card account has \$650 balance on May 5. A purchase of \$321 was made on May 14 and a payment was made on May 22 of \$500. The next billing date is June 5. A. What is the average daily balance? B. If the monthly interest is 1.5% what is the finance

asked by carmen on January 13, 2010
73. ## Credit Card - Situations

Hayden needs some equipment for the apartment he is renting while attending college. He finds some things on sale at a reasonable value, and he opens a charge account with the retailer. I don’t understand this one, since the items are on sale, couldn’t

asked by Yipee on March 31, 2011
74. ## Math

Mr. and Mrs Smith have decided to buy new furniture. They have 2 options. The first is to pay cash of \$4,200.00, the second is to finance with a 2 year installment loan. They would have to put down 12% with 24 equal payments of \$195.00. According to this

asked by Mare on November 23, 2010
75. ## Physics

Two identical charged particles of mass m=1.6 kg and electric charge Q=-5.2 μC are placed on an frictionless 26° incline. One of them falls down to the bottom and stops against the wall. The other stays at rest in the middle of the incline as shown in

asked by Alex on June 13, 2012

what is the purchase price of eight soft corporation bonds with an annual interest rat of 8 1/2% and a current market price of 83? The commission charge is \$5 per bond. the date of the transaction is January 1, and the bond pays on Otober 1 and april 1.

asked by angel on March 26, 2013
77. ## math

You are charged \$279 on your credit card for a hotel stay, you call to complain about the unexpectedly high charge, but are told there are a total of 24% taxes for hotel rooms where you stayed. What was the advertised price of the room before taxes?

asked by tia on September 29, 2018
78. ## Fundamentals of Electricity

The box-like Gaussian surface of Fig. 1 encloses a net charge of +24.0ε0 C and lies in an electric field given by N/C, with x and z in meters and b a constant. The bottom face is in the xz plane; the top face is in the horizontal plane passing through y2

asked by jojo on November 30, 2009
79. ## Absolute and relative change

You are charged \$279 on your credit card for a hotel stay, you call to complain about the unexpectedly high charge, but are told there are a total of 24% taxes for hotel rooms where you stayed. What was the advertised price of the room before taxes?

asked by jane on April 24, 2016
80. ## AP math 11 grade

the charges for a phone call are \$.52 for first min. and \$.35 for each additional min. A)graph this step function for 6 minutes.Let x represent time, and f(x) the charge B) for the domain 0

asked by sal on November 21, 2010
81. ## physics

A uniform electric field ofmagnitude 384 V/m is directed in the positive x-direction. Suppose a 16 ìC charge moves from the origin to point A at the coordinates, (20 cm, 60 cm). What is the absolute value of the change in potential from the origin to

asked by robert on January 23, 2012
82. ## PHYS 1112

A defibrillator is used during a heart attack to restore the heart to its normal beating pattern. A defibrillator passes 18 A of current through the torso of a person in 2.0 ms. a) How much charge moves during this time? b) How many electrons pass through

asked by Diane on February 11, 2010
83. ## Physics

if you had two ping pong balls (or golf balls, or tennis balls), both carrying the maximum possible positive electrical charge, and you also had insulating gloves that allowed you to pick them up without being shocked, would you be strong enough to make

asked by Amber on March 29, 2012
84. ## Math

david is comparing two different phone plans. Chatty box has a flat rate of 2 cents per minute. celltalk charger 15 cents per call plus 1 cent per min at what minute will both companies charge the same amount of money?

asked by Anonymous on June 8, 2017
85. ## Pseudocode Format

Need help writing this into Pseudocode Format: Robert has a van rental company, and he wants a program that determines the total cost of renting a van from him. His customers will pay a base fee (currently set at \$50), plus a charge per mile (currently

asked by Bill on May 21, 2013
86. ## biology

find an instance of an ecological “mess” that has taken place in your city/county/region. Outline the history of the problem – what caused it? What is being done to resolve the problem? Suppose that you had been in charge of the situation. What might

asked by sharday on December 10, 2012
87. ## Grammar questions check

Would some one please check and see if I am correct 1.Identify the location or locations where apostrophe errors occur: "Put the clothes over they're (A)," he said. "That is where they're (B) going." _XX_Only A __Only B __A and B __No error 2.Identify the

asked by Jessica on August 13, 2008
88. ## Math

when 8 is added to a certain number, the result is 3 times as large as when 2 is subtracted from the number. what is the correct number?

asked by Emelia Martin on April 4, 2017
89. ## Algebra

The second angle of a triangle is 3 times as large as the first. The third angle is 55° more than the first. Find the measure of the smallest angle

asked by James on August 17, 2010
90. ## chemistry

sorry i didn't post before.. Lab: Electrolytic Cells Purpose: The purpose of this experiment is to test the method of stoichiometry in cells. Materials: Balance Steel can Tin electrode Power Source Wire lead (x2) tin(II) chloride solution (3.25 M) Timer

asked by samantha on April 18, 2008
91. ## Calculus

Write an equation of the line that passes through the point (i) parallel to the given value, and (ii) perpendicular to the given line. Point(7,1) Line(-5x-5y=90)

asked by Rudy on October 8, 2012
92. ## Algebra

A line that is parallel to the graph of y=1/2x+7 I think it is 1/2. A line that is perpendicular to the graph of y=-2x-3 I think this one is 1/2 as well. Find the x-intercept of the graph of each equation. 3x+2y=7 2x+3y=7 I got (0,7) for both of them.

93. ## Circle Geometry - chords in a circle

Let PQ, RS , and TU be parallel chords of a circle. The distance between chords PQ and RS is 4, and the distance between chords RS and TU is also 4. If PQ = 78 TU=50 , then find RS. how to do this? Draw some lines?

asked by Knights on March 21, 2013
94. ## Geometry

Troy is thinking of a shape. He says that it has four sides and that no sides have equal length. He also says that no sides are parallel. What is the best name for his shape?

asked by Anonymous on March 11, 2012
95. ## geometry

In a trapezoid EFGH, side EF is parallel to side HG. The measure of ÚE is 90o and the measure of ÚF is 85o. What is the measure of ÚG?

asked by morgan on February 2, 2012
96. ## math

Give the slope and y-intercept of the given line. 1.2x-3y=6 2. y=-2x 3. y=3 4. x+2=0 Find the slope of the line that is a) parallel and b) perpendicular to the given line. 1. x=-8 2. y=10

asked by elizabeth on May 10, 2012
97. ## Calculus

Determine the equations of the following lines: (a) having slope ¡1 and passing through (0; 2) (b) parallel to y=2x-1 and passing through (¡2; 0) (c) passing through (1; 0) and (¡1; 3) (d) with x-intercept 6 and y-intercept 3.

asked by Preston on September 14, 2010
98. ## Algebra 2

the gym charges 180\$ for a yearly membership. there are currently 1000 members. for every 5\$ increase the gym will lose 10 members. how much should the gym charge to maximize its revenue?

asked by Jake on March 11, 2016
99. ## physics

You have an RC circuit and you measure the "zero" voltage to actually be 2.385 [Volts]. The peak voltage is measured to be 8.262 [Volts]. At what voltage value will you look for t4 = time stamp for 15/16 total charge?

asked by B on March 18, 2015
100. ## physics

The electric field in an xy plane produced by a positively charged particle is 14.2(4.4 + 3.3) N/C at the point (3.1, 3.7) cm and 117 N/C at the point (3.2, 0) cm. What are (in cm) the (a)x and (b)y coordinates of the particle? (c) What is the charge (in

asked by Raaman on February 8, 2012